Hi all, I recently purchased a used 2008 gen 3 Glock 19 and took it out to shoot. I noticed the gun had poor consistency ejecting ammo in the same direction. I watched a bunch of Glock 9mm shooting videos online and noticed that this was happening to some degree on almost all Glocks across all Gens (some worse than others), but wanted to know how normal this is, why it is happening, and whether I can prevent/fix it? Also, will this affect reliability of the gun? Here is a short video that shows a pretty good representation of the erratic patterns (I get occasional BTF and sometimes leftward ejection, over the head ejection, etc.): I don't know if I should try to do something about it, or ignore it. Thank you for your input!